baber/WOPTO huggingface dataset:
Patent GB-254070-A (GB)
Title: Improvements in shuttering for use in building cement and like walls
IPC: E04G17/06
Filed: 1925-05-26
Abstract: 254,070. Cramer, J. May 26, 1925. Moulding walls in situ.-Core shuttering for use in constructing hollow concrete walls is formed of tongued boards a arranged vertically and tied together by upper and lower horizontal members b, the latter having rounded or bevelled upper edges with which coact rectangular members d having pointed lower ends to maintain the shutters in set position. The shutters are supported on lower metal ties having upstanding lugs h against which the shutters rest, and other lugs j for engagement by the concrete so that the ties form wall-ties. For succeeding courses, further projections n to contact with the inner faces of the cast wall are also provided on the metal ties. The wall-ties may also be formed of cast metal, terracotta, stoneware, clay or cement, with or without metal reinforcement m, Fig. 6, and may also position the wall reinforcement k when such is used. The shutters are held in correct position at their upper ends by removable clips o with depending projections p, and these may be further provided with lateral extensions q to support or position the wall reinforcement, the tops of the shutters being slotted at s to allow of their removal, Fig. 9.
Patent GB-628416-A (GB)
Title: Improvements in tubular apparatus for the exchange of heat between fluids
IPC: F28F1/14
Filed: 1947-05-23
Abstract: 628,416. Tubular heat-exchange elements. COMPAGNIE DES SURCHAUFFEURS, and HUET, A. May 23, 1947, No. 13895. Convention date, May 24, 1946. [Class 64(iii)] In a bank of heat exchanger tubes, each tube 1 has two longitudinally - extending fins 2, 3 tangential to it at lines spaced 180 degrees apart on its periphery, and the tubes are arranged in rows with their fins lying in planes inclined to the general direction of flow A of one heat exchange fluid flowing transversely o v e r the tubes. The opposed fins 2, 3 on adjacent tubes in each row are arranged in the same plane and closely spaced to constitute a substantially continuous wall between the tubes, the rows being staggered to form a path of varying cross section to cause alternate expansion and compression of the fluid flowing over the tubes.
Patent GB-770591-A (GB)
Title: Improvements in or relating to the drying of animal glue
IPC: C09H9/02
Filed: 1955-05-13
Abstract: 770,591. Drying glue. ARMOUR & CO. May 13, 1955 [June 25; 1954], No. 13909/55. Classes 34(1) and 34(2) In a method of drying animal glue, a layer of glue is formed on each of at least two rolls 10, 11 and is removed as a continuous film a, b, by knives 20, 21, the films being superimposed on each other and passed through a hot air drying oven 31 on a conveyer to produced continuous multilayered sheet of glue. Glue is fed to the. rolls by rollers 12, 13 rotating in vessels 14, 15 and the layer is held against the steam heated rolls by air streams from blowers 16, 17 while hoods 18, 19 exhaust moist air. The films a, b pass between calendar or chill rolls 22, 23, 24, 25 on to conveyers 29, 30 and are crinkled. The first stage 34 of the drying zone is operated at temperatures below the fusing point of the films but the second stage is operated at air temperatures above the fusing temperature so 'that the films fuse together. Specifications 707,412 and 708,647 [both in Group III] are referred to.
Patent GB-1058095-A (GB)
Title: Improvements in or relating to electric connecting devices
IPC: H01R12/72
Filed: 1965-04-02
Abstract: 1,058,095. Printed circuit edge connectors. M. HARTING, [trading as WILHELM HARTING WERKE FUR ELEKTROTECHNIK UND MECHANIK]. April 2, 1965 [May 2, 1964], No. 14008/65. Addition to 908,670. Heading H2E. A connector comprises a resilient insulating strip-like carrier 1 and a plurality of single or double wire contacts each having a U-shaped part 3 fitting in a hole 4 in the carrier, said contacts being described in the parent Specification, the carrier 1 being provided on one side with a rib 5 interrupted at the holes 4 and on the other side with parallel guide ribs 11 flanking both sides of each hole. The rib 5 has portions 6 projecting across each hole provided with parallel surfaces 7 and divergent surfaces 8. The guide ribs 11, Figs. 2, 3 (not shown), have parallel surfaces 10 extending from an edge 9 of the carrier up to the beginning of spring contact portions 3, and stop edges 12 to locate a counter-contact member, e.g. a printed circuit board, insertable under the spring portions 3. The U-shaped parts are inserted from the side of the carrier containing the ribs 11, are pressed against the surfaces 8 so as to bend the carrier, and are engaged over the portions 6. The carrier may be bent before the insertion of the contacts.
Patent GB-662261-A (GB)
Title: Improvements in or relating to thermionic valve oscillator circuits
IPC: H03B5/34
Filed: 1949-05-25
Abstract: 662,261. Valve generating circuits. GENERAL ELECTRIC CO., Ltd., and MAWSON, R. May 11, 1950 [May 25, 1949], No. 14024/49. Class 40 (vi). The anode voltage of an oscillator valve and the screen grid voltage of the succeeding valve are stabilized by means of a resistor connected to the H.T. source and a discharge tube connected in series with the resistor. As shown, a crystal oscillator valve 1 feeds its output to a tuned circuit 32 connected to the grid of a cathode follower stage 2. The voltage for the anode and screen grid of the cathode follower are obtained from the junction of a resistor 22 and a gas-filled triode or diode 37.
Patent GB-1061343-A (GB)
Title: Improvements in or relating to presses
IPC: B30B1/00
Filed: 1965-04-02
Abstract: 1,061,343. Metal marking presses. R. C. HOWARD, and L. W. McDOWELL. April 2, 1965 [May 11, 19641, No. 14025/65. Heading B3H. A fluid-operated press, particularly for working metals, comprises a stationary bed 12 with vertical guide posts 14 on which is slidable a ram 16, a thrust plate 22 fixed to the guide posts, and an unarticulated elastic bag 24 fixed to the thrust plate and resting upon the ram and which is supplied with pressure fluid for moving the ram towards the bed. The fluid may be hydraulic but is preferably pressurized air supplied to the rubber bag 24 through an accumulator 110, solenoid-operated valve 90 and duct 88. Springs assemblies 91 are used to return the ram which may make up to 450 strokes per minute. The posts 14 are locked in the bed 12 by snap rings 34, Fig. 5 (not shown) and the ram 16 has replaceable bushes 44 sliding on the posts. Thrust plate 22 with the actuating mechanism is removably secured to the posts by split collars 56, 58 which permits the stroke position to be varied. This also enables the actuating mechanism to be used with different ram and bed assemblies and hence with different die sets.
Patent GB-166780-A (GB)
Title: Improvements in wireless directional systems
IPC: G01S3/06
Filed: 1920-05-21
Abstract: 166,780. Robinson, J., and Smith, R. T. May 21, 1920. Directive signalling.-In directional receiving- sets, as used on aeroplanes &c., the variable error due to re-radiation from the metallic structure of the craft is subdued or eliminated bv means of a correcting-coil, which is arranged so that its effect is adjustable and which is placed either in series or in parallel with, or is coupled to, the directional coil or coils. The usual error is quadrantal, as shown in Fig. 1, or semicircular as in Fig. 2. Figs. 7 and 8 show an arrangement for correcting quadrantal error. The correcting-coil 13 is geared bv a crossed drive 16 so as to rotate at the same rate but in the opposite direction to the main and auxiliary directional aerials 11, 12. As shown in Fig. 8, it is in series with the auxiliary coil 12, its effect thereon being controlled by an adjustable shunt or inductance 18. The correcting effect will be zero in the fore-and-aft directions, and at right-angles thereto; whilst it will be a maximum at intermediate points, i.e. at 45‹, as required by the quadrantal-error graph, Fig. 1. For the type of error indicated in Fig. 2, the correcting-coil is fixed, and set in the plane of maximum error, so as to apply a maximum correction in the positions corresponding to an angular displacement of 90‹ and 270‹ respectively.
Patent GB-528652-A (GB)
Title: Improvements in or relating to blowpipe burners
IPC: F23D14/32
Filed: 1939-05-11
Abstract: 528,652. Blow pipe burners. SOC. L'AIR LIQUIDE, SOC. ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES, G. CLAUDE. May 11, 1939, No. 14094. Convention date, April 19. [Class 75 (i)] The gas injector 4 and mixing tube 5 are removably fitted in a block 6 to which flexible oxygen and acetylene supply pipes are coupled and the block 6 is secured to the burner body 1 by a screw 3 carried by a yoke 2 pivoted at 8 to the body. Injectors and mixing tubes having different characteristics are fitted according to the work to be done. The jointing surfaces between the injector 4 and block 6 may be flat or conical and plastic sealing material may be provided to prevent the escape of gas between the tube 5 and body 1. Cutting oxygen is supplied at 11 to the body 1.
Patent GB-162934-A (GB)
Title: Improvements in silencing devices for internal combustion engines
IPC: F01N1/00
Filed: 1920-05-25
Abstract: 162,934. Blackburn Aeroplane & Motor Co., Ltd., Blackburn, R., and Reed, J. May 25, 1920. Exhaust-silencers and the like.-A silencer for the exhaust or inlet gases of internal-combustion engines, &c., comprises a long casing 1 of uniform diameter, a tube 4 open at both ends and extending from the end 3 nearly to the other end 2 of the casing, and an opening or a tube 6 communicating with the casing at the end 3, the tube 4 having series of holes or one or more slots 5 increasing in size or width towards the inner open end. In the exhaust-silencer shown, the gases enter by the tube 6 and escape through the slotted tube 4. In a modification for silencing the air supply tu a carburettor, the outlet tube 4 is coaxial with the casing 1, which has air inlets at the end 3 around the tube 4; or the air may be admitted through the tube 4 and escape through a lateral outlet near the end 3. Specification 135,119 is referred to.
Patent GB-663942-A (GB)
Title: Improvements in, or relating to, the measurement and control of temperatures in metal melting furnaces
IPC: G01K1/08
Filed: 1948-05-27
Abstract: 663,942. Induction furnaces. BIRLEC, Ltd. May 27, 1948 [May 27, 1947], No. 14288/48. Class 39(iii) The working temperature of a submerged resistor furnace for melting metal of the kind having a secondary melting loop comprising a channel 2 spaced from the bed of the hearth and connected thereto by channels 3, 4 as in Specifications 599,439 and 571,304, is measured and controlled by a thermocouple or equivalent instrument 15 projecting into the channel 2 and carried by a removable refractory plug 11 at one end of the channel 2. The inner end of the thermocouple projects through the plug 11, but does not project beyond the adjacent internal face of the channel 3. The thermocouple 15 is packed in clay in a casing 13 of refractory material, e.g. silicon carbide or graphite held by a cement layer 14 in the plug. The melting loop may be arcuate. The thermocouple 15 is connected to a temperature controller regulating current supply to the furnace, e.g. by cutting off all the power at a maximum temperature and switching it in at a minimum temperature. Alternatively the furnace has 'a full power supply for rapid heating and a low power power tap insufficient to hold the temperature of the furnace, and the thermocouple switches in one or the other. Specification 642,199 is referred to.
Patent GB-686538-A (GB)
Title: Improvements in or relating to engines for engine-assisted pedal bicycles
IPC: B62M7/00
Filed: 1949-05-30
Abstract: 686,538. Yielding friction wheels. MILLER & CO., Ltd., H., and RUDAWSKI, T. May 30, 1950 [May 30, 1949], No. 14374/49. Class 80 (ii). [Also in Groups XXVII and XXXI] Relates to an engine for an engine-assisted pedal cycle having a friction roller adapted to engage the tyre of a road wheel, The roller comprises a hub member 43, which is splinedly mounted on an engine driven spindle, and a rubber core 45 which is bonded to the member 43 and to a ribbed shell 44. The shell may be replaced by a system of rigid bars.
Patent GB-578007-A (GB)
Title: Improvements in combustion chamber linings
IPC: F02K9/34
Filed: 1941-11-07
Abstract: 578,007. Combustion chambers. ASIATIC PETROLEUM CO., Ltd., LUBBOCK, I., BECKER, L. S., and GOLLIN, G. J. Nov. 7, 1941, No. 14400. [Class 51 (i)] A combustion chamber having an expansion nozzle 2 which operates at high temperatures and pressures, as in jet propulsion apparatus, is provided with a refractory lining, preferably of graphite, divided transversely into rings 3 of comparatively short lengths, designed so as not to be subjected to excessive tensile stress in operation, either by dividing each ring radially into segments, or by shrinking the metal shell 1 around the rings. Radial gaps may be provided between the segments. An additional interior lining 5 may be provided at the throat of the expansion nozzle, and a retaining-plate 6 fitted at the open end.
Patent GB-273264-A (GB)
IPC: H02P9/24
Filed: 1927-05-30
Abstract: 273,264. British Thomson-Houston Co., Ltd., (Assignees of Carothers, R. M.). June 24, 1926, [Convention date]. Regulation, automatic. - In regulators, of the Tirrill type for example, in which an impedance 6 is periodically short circuited by a group of simultaneously operated relays 12 - - 15 with series connected contacts each of which controls a portion of the impedance, a further group 16 - - 18 is arranged in parallel relationship with the first, the contacts 30 - - 32 of these relays being connected to the impedance a points between the connections to the relay contacts 26 - - 29 of the other groups. The liability to pitting and sparking of relay contacts is thus reduced since the operation of any relay out of unison with the others does not result in double duty on another relay.
Patent GB-290051-A (GB)
Title: Improved construction of door or like lock or catch
IPC: E05F5/00
Filed: 1927-05-31
Abstract: 290,051. Woods, A. May 31, 1927. Latches, sliding; striking-plates for latches.- The recessed casing A has an end plate A<3> receiving the nose B of the bolt B' provided with a lug B<3> actuated by the tumbler C of the outer handle T, the casing also having a conical projection P which enters an aperture in a separate striking-plate R. The bolt is engaged by a spring E and slides between guides D, D', being secured to or continued as an extension B<2> having a looped end B<4> for the attachment of an operating- strap M. The cover-plate H is secured to a lug G and to the guide D'. The projection P may he in line with the shaft S of the tumbler C or at the edge in the centre line of the case.
Patent GB-1073081-A (GB)
Title: Production of bis-quaternary salts of 4:4'-bipyridyls
Inventor: COLCHESTER JOHN EDWARD
IPC: C07D213/22
Filed: 1964-04-09
Abstract: N,N1 - Disubstituted - 4:41 - bipyridylium salts are obtained by treating N,N1-disubstituted -tetrahydrobipyridyl with an oxidizing agent which is an organic compound which is a hydrogen acceptor and has a redox potential more positive than - 1.48 volts.  Specified oxidizing agents are quinone, nitroalkanes, and unsaturated carboxylic acids or their derivatives.  Specified N,N1-disubstituted tetrahydro - 4:41 - bipyridyls are N:N1 - dialkyl-tetrahydro - 4:41 - bipyridyls, N:N1 - dibenzyl - tetrahydro - 4:41 - bipyridyl or tetra hydrobipyridyls having as N-substituents a carbamylalkyl group of the formula -R1-CO -NR2R3 wherein R1 is a hydrocarbon radical and R2 and R3 are hydrocarbon or substituted hydrocarbon radicals or R2 and R3 may together with the N-atom form a heterocyclic ring which may be substituted.  The reaction may be carried out in a solvent for the N:N1 - disubstituted - tetrahydropyridyl and the oxidizing agent. Specified solvents are ethers, ketones, hydrocarbons, organic bases, halogenated hydrocarbons, amides, and sulphoxides. Examples are given for the production of N,N1 - disubstituted - 4:41 - bipyridylium salts in which the substituents are both methyl, benzyl, diethyl-carbamylmethyl, piperidinocarbonylmethyl, or 3:5 -dimethylmorpholinocarbonylmethyl.  Reference has been directed by the Comptroller to Specification 965,589.
Patent GB-166025-A (GB)
Title: Apparatus for printing from engraved plates
IPC: B41F3/36
Filed: 1920-05-31
Abstract: 166,025. Desteract, A. Peters-. May 31, 1920. Intaglio-plate printing.-A press for taking prints from copper plates, engraved plates, &c. has the axle a<1> of the upper roller a supported against spring pressure by the ends i<1> of levers i, so that a number of impressions can be taken on a long web of paper or fabric one after the other by raising the upper roller when the plank k carrying the engraved plate &c. has reached the end of its stroke, and pulling through the web into position such that the next part of the web to be printed will come into contact with the engraved plate during the next stroke of the plank. The bearings d of the roller shaft a<1> are engaged by springs b, pressure being applied by screws f through cups e<1>, which are adapted to coact with wedges g to prevent excessive strain of the springs. A blanket n passes round the roller a and a roller l mounted in the upper part of the machine frame,
Patent GB-179445-A (GB)
Title: Improved paper feeding and guiding mechanism for typewriters
IPC: B41J13/10
Filed: 1921-05-27
Abstract: 179,445. Golby, F. W., (Federal Adding Machine Corporation). May 27, 1921. Sheet feeding and guiding arrangements; paper-supports. -In arrangements comprising front and rear sets of paperfingers forming a continuous guide for the paper, feed-rollers are carried by an apron mounted universally between the fingers of one set; the support for the front set of fingers may be adapted to retain the platen roller in the carriage. A paper-shelf 14, Figs. 3 and 6, secured to a rocking bar 15 on the platen frame, is provided with rear paper-fingers 19, and an extension 23 having a pivot 25<a> on which is universally mounted an apron 24 carrying front and rear feed-rollers 20, 22. A spring on the rocking bar holds the shelf in contact with a bar 18. A releasing-lever 25, Fig. 3, on the bar 18 is provided with a pin 50 engaging the shelf, and a lug 51 entering a movement-limiting slot 52. Front paper-fingers 34, Fig. 4, extending to or overlapping slightly the paper-fingers 19, are mounted on a bar 26, Fig. 3, carried by rocking arms 27, one arm having a lateral bend 31 which is held by a spring 29 in contact with one of the notched locking-arms 30 that engage the platen shaft 54, and retain the platen. The spring 29 is connected to the arms 27, 30, and a stronger spring 32 is connected to the locking-arm, the arrangement enabling the paper-fingers to be released either by pulling forwards the arms 27 or, when it is required to detach the platen, by pulling forwards the locking-bar. The paper-fingers are provided with feed-rollers 35 and are formed at one side with a stem 36 having T-heads 38 sliding in a bar 26, frictional engagement being maintained by a leaf spring 39. The fingers are released for adjustment by pressing on the stems. The shelf supports adjustable side-lays 42, Fig. 5, consisting of a resilient plate formed with a side flange 44, a bend 47 passing over the upper edge of the shelf, and a raised bend 43 which causes the upper and lower edges 45, 46 to grip the shelf. The edge 46 may abut on the back of a groove 48 in the shelf, and the band 43 may contain fibre-tipped pins 49 engaging the groove.
Patent GB-1427430-A (GB)
Title: Vehicle transmissions
IPC: F02N11/04
Filed: 1973-03-28
Abstract: 1427430 Dynamo-electric machines A K EDWARDS 25 June 1974 [28 March 1973] 14796/73 Heading H2A In a combination of a vehicle engine, a D.C. electric machine, a storage battery and control gear, the D.C. machine has a field member and an armature member, one member being coupled to the engine crank-shaft and the other to an output shaft, the control gear being interconnected with the battery and the D.C. machine so that, in use, the D.C. machine may be operated, as desired, as a starter motor, as a generator or as a torque transmitter, in which last mentioned mode of operation the output shaft of the D.C. machine rotates in the opposite direction to that of the crank-shaft, for forward movement of the vehicle.
Patent GB-639409-A (GB)
Title: Improvements in and relating to view finders for photographic apparatus
IPC: G02B23/14
Filed: 1947-06-05
Abstract: 639,409. View-finders. KALART CO., Inc. June 5, 1947, No. 14886. Convention date, Jan. 22. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 5, 1947.] [Classes 97 (i) and 98 (i)] A collimating view-finder comprises a shortfocal length eye-piece having. an angle of field of at least 70 degrees and a substantially flat field which eye-piece is focused on a mask consisting of a plate of transparent material the surface of which facing the eye-piece is substantially opaque and has formed therein grooves which extend into the transparent material, serve to gather light incident on said transparent material and define a framed area. In one form, the eye-piece 2 and the mask 3 are supported in a housing 4, which, can be secured to a camera by ears 7, and the mask comprises a plate as of glass, the surface of which facing the object has been ground and the other surface of which has been given an opaque coating and has been cut or etched to form grooves 12-14, which are preferably V-shaped. Each of the grooves 12 to 14 defines an area equal to that of the image which would be formed in the camera by a lens having a particular focal length. Thus, if a lens of 90 mm. focal length is in use in the camera, the photographer looks through the eye-piece with one eye and the object seen with the other eye appears to be visually superimposed on images at infinity of the grooves 12 to 14 and the part of the object which appears to be bounded by the image of groove 14 is that part which the camera lens images on the film in the camera. The eyepiece may comprise two lenses, optical data for which are given in the Specification. The view-finder may be combined with a rangefinder as shown in Fig. 11 in which a mask 25 is disposed in the focal plane of an eye-piece 27 and between the mask and eye-piece a prism 35 and a negative lens 38 are positioned. The photographer on looking into the eyepiece 27 sees an image at infinity of the grooves 12 to 14 and two images of the object formed by light rays which are directed by a fixed prism 28 and a rotatable prism 29 on to a semitransparent mirror 33, a prism 34 and then on to the prism 35. By rotation of the prism 29, the two images of the object may be superimposed ; prism 29 may be coupled with the camera lens mount so that the lens is in focus when the two images of the object appear to be superimposed in the eye-piece 27.
Patent GB-1358386-A (GB)
Title: Heat treatment of aluminium or aluminium alloy products
IPC: C21D9/62
Filed: 1971-05-14
Abstract: 1358386 Heat treating aluminium MAGYAR KABEL MUVEK 14 May 1971 [15 May 1970] 14902/71 Heading C7N Wrought products of aluminium or aluminium alloy are continuously solution treated by resistance heating, the product passing in a linear path between two spaced contacts and then into a cooling zone. The treatment may be carried out at 400‹ C to 600‹C for 1 to 120 seconds using a current of 10, 000 A at IV, with the contacts immersed in liquid. Apparatus includes guide rollers 2, 7 by which the product is caused to pass between contact rollers 3, 5 located in liquid baths 4, 6, the guide rollers being synchronously but having diameters adjusted to the dimensional change in the product brought about by heat treatment. Arcing between contacts and product is prevented by jets of liquid in the tanks 4, 6, the liquid in tank 6 serving to cool the heated material, while additional cooling may be provided between tank 6 and rolls 7. Speed of material travel, current intensity, and spacing of the contacts are all adjustable to provide the desired treatment conditions.